# include<iostream> using namespace std; int main(){ int n,m,a[101][101],hang=0,lie=0,h=0,l=0; cin>>n>>m; for(int i=0;i<n;i++){ for(int j=0;j<n;j++){ cin>>a[i][j]; } } for(int i=0;i<n;i++){ for(int j=0;j<=n;j++){ if(a[i][j]==1){ hang++; } if(a[j][1]==1){ lie++; } } if(hang%2!=0){ h=1; break; } if(lie%2!=0){ l=1; break; } } if(h==0||l==0){ cout<<"OK"<<endl; } else { cout<<"Corrupt"; } return 0; }